code: def _get_default_a_label(self):
      return self.category_a_list_[0]
  
file_path: scattertext/scattertext/semioticsquare/FourSquare.py
imports: from scattertext.semioticsquare import SemioticSquare
  from scattertext.termranking import AbsoluteFrequencyRanker
label_desc: Use image node_id 5 for calling the FourSquare obj's underlying member method code with example usage: obj._get_default_a_label() and returns: self